Laravel как заставить программу запомнить значение select после обновления страницы

Question

Я создал 3 выпадающих списка с помощью al oop, но когда я его поменяю, он отправит форму, которая будет go для функции show моего контроллера. Затем он возвращается с новыми параметрами на страницу индекса, но я не могу вспомнить первое раскрывающееся значение. моя индексная страница:

@section('main')
    <h1>Apply now!</h1>
    <h2>Select your preferences</h2>
    <form action="/applications/{{$record->id}}" method="post" id="submitForm">
        @method('put')
        @csrf
        @for ($i=0; $i<3; $i++)
            <p style="font-weight: bold">Choice 1</p>
            <label for="country{{$i}}">Country</label>
            <select name="country{{$i}}" id="country{{$i}}">
                <option value="%">All countries</option>
                @foreach($places_countries as $country)
                    <option value="{{$country->country->id}}  {{ (request()->country ==  $country->country->id ? 'selected' : '') }}">{{ $country->country->country }}</option>
                @endforeach
                <option value="other">Other</option>
            </select>

            <label for="otherOption{{$i}}" hidden>what's your suggestion?</label>
            <input type="text" id="otherOption{{$i}}" hidden>

            <label for="city{{$i}}" hidden>City</label>
            <select name="city{{$i}}" id="city{{$i}}" hidden>
                <option value="%">All cities</option>
                @foreach($places_cities as $city)
                    <option value="{{$city->city->id}}">{{ $city->city->city }}</option>
                @endforeach
            </select>

            <label for="organisation{{$i}}" hidden>Organisation</label>
            <select name="organisation{{$i}}" id="organisation{{$i}}" hidden>
                <option value="%">All organisations</option>
                @foreach($places_organisations as $organisation)
                    <option
                        value="{{$organisation->organisation->id}}">{{ $organisation->organisation->organisation }}</option>
                @endforeach
            </select>
        @endfor
        <br>

        <button type="submit">Submit your choices</button>
    </form>
@endsection

мой контроллер:

<?php

namespace App\Http\Controllers\Student;

use App\Country;
use App\City;
use App\Organisation;
use App\Place;
use App\Record;
use Facades\App\Helpers\Json;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use Illuminate\Support\Facades\DB;


class ApplicationController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        $places_countries = Place::distinct()->get(['country_id']);
        $places_cities = Place::distinct()->get(['city_id']);
        $places_organisations = Place::distinct()->get(['organisation_id']);
        $record = DB::table('records')->where('id', '1')->first();
        $result = compact('places_countries', 'places_cities', 'places_organisations', 'record');
        Json::dump($result);
        return view('student.application', $result);
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        return redirect('applications/');
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {
        //
    }

    /**
     * Display the specified resource.
     *
     * @param  \App\Record  $record
     * @return \Illuminate\Http\Response
     */
    public function show(Request $request, $id)
    {
        $places_countries = Place::distinct()->get(['country_id']);

        if ($request->country0 != null || $request->country1 != null || $request->country2 != null){ //if a country is chosen, set all cities of that country in dropdown
            //$places_cities = DB::table('places')->where('city_id', $id)->distinct();
            $places_cities = Place::orderBy('id', 'asc')
                ->where(function ($query) use ($id) {
                    $query->where('city_id', '=', $id);
                });
        }else{ //if none is chosen, set all distinct cities in dropdown
            $places_cities = Place::distinct()->get(['city_id']);
        }

        if ($request->city0 != null || $request->city1 != null || $request->city2 != null){ //if a city is chosen, set all organisations of that city in dropdown
            //$places_organisations = DB::table('places')->where('organisation_id', $id)->distinct();
            $places_organisations = Place::orderBy('id', 'asc')
                ->where(function ($query) use ($id) {
                    $query->where('organisation_id', '=', $id);
                });
        }else{//if none is chosen, set all distinct organisations in dropdown
            $places_organisations = Place::distinct()->get(['organisation_id']);
        }

        $record = DB::table('records')->where('id', '1')->first();
        $result = compact('places_countries', 'places_cities', 'places_organisations', 'record');
        Json::dump($result);
        return view('student.application', $result);
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  \App\Record  $record
     * @return \Illuminate\Http\Response
     */
    public function edit(Record $record)
    {
        return redirect('applications/');
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \App\Record  $record
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, $id)
    {
        $record = Record::find($id);

        $preference1 = $request->country0 . " " . $request->city0 . " " . $request->organisation0;
        $preference2 = $request->country1 . " " . $request->city1 . " " . $request->organisation1;
        $preference3 = $request->country2 . " " . $request->city2 . " " . $request->organisation2;

        $record->preference1 = $preference1;
        $record->preference2 = $preference2;
        $record->preference3 = $preference3;

        $record->save();

        return response()->json([
            'type' => 'success',
            'text' => "Your preferences are submitted!",
        ]);
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  \App\Record  $record
     * @return \Illuminate\Http\Response
     */
    public function destroy(Record $record)
    {
        //
    }
}

Если вам нужна дополнительная информация, пожалуйста, дайте мне знать!

Answer 1

Вы можете достичь этого, просто используя сеансы, узнав о Laravel сеанс здесь

Сохранить данные в сеанс

// Via a request instance...
$request->session()->put('key', 'value');

// Via the global helper...
session(['key' => 'value']);

Извлечение данных из сеанса

// Via a request instance...
$value = $request->session()->get('key');

// Retrieve a piece of data from the session...
$value = session('key');